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Assume the absolute zero apparatus is initially open to the air.
The volume of a sphere is: V = 4Πr3/3
a) Assume that air pressure is Po = 1.00 atm and the air temperature is To = 11.9o C. How many moles of air will the sphere hold?
b) Suppose now that the apparatus, initially open, is now sealed with the air inside. If the apparatus is now heated to to 888o C, find the pressure inside the apparatus now.
c) Assume now that, while maintaining a temperature of 888o, the sphere is injected with another 0.0127 moles of air. What is the new pressure inside the ball?
Explain what is the current in the cell during this period? Assume that the gold ions carry one elementary unit of positive charge.
A significant gust of wind displaces the wrecking ball by a small amount, and then the gust is nearly gone. What is the kinetic energy of the ball at the bottom of the swing if the ball is displaced to a maximum of about 0.5o due to the single gus..
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1360 Hz. The bird-watcher, however, hears a frequency of 1430 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
Particle X has a speed of 0.800 c and a momentum of 5.24 x 10-19 kgm/s. The mass of the particle is 1.31 x 10-27 kg, and the rest energy of the particle is 1.179 x 10-10 J. What is the kinetic energy of the particle
For a standard production car, the highest road-tested acceleration ever reported occurred in 1993, Find the magnitude of the car's acceleration
As part of a treatment program, a patient ingests a radioactive pharmaceutical containing 32P which has an initial activity of 1.4 MBq. How many electrons are emitted over a period of 6.5 days?
A transverse sinusoidal wave on a string has a period T = 25.0 ms and travels in the negative x direction with a speed of 30.0 m/s. At t = 0, What is the initial phase angle
For a particular collision you detect the emitted products and find 15 protons, 2 antiprotons, 6 positrons, and 25 neutral particles. How many electrons are also emitted?
we consider a man of mass m 81 kg using crutches. the crutches each make an angle of 28 degrees with the vertical.
Four moles of ideal gas at 0C and atmospheric pressure undergoes isothermal expansion where its volume is doubled. Compute work the gas does. Calculate entropy change in the gas. Is heat added to or taken away from the gas? How much?
A rock is thrown directly upward at 30 m/s from the edge of the roof of a building that is 20.0 meters tall. The rock misses the building on its way down. What is the velocity of the rock when it is at 10.0 m above the ground?
What percentage of the input energy needed to pump the water up to the top tank could you recover from the turbine as the water ran back to the bottom tank, two 15,000 litre water tanks and put one on a frame 3m higher than the other,
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